JP2000142046A - Fastening device for tire slip preventing device and tire slip preventing device, and installing method for tire slip preventing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily draw out both front and back sides of a net body on this side and to easily bring both the sides of the net body close to each other, after fitting an opening part formed in a longitudinal center part of the net body on a tire grounding part at the time of installing a split-type tire slip preventing device to a tire. SOLUTION: A ring-shaped hooking part 39 formed at one end part of a strap 1 is locked to one of hook tools 18 provided to net pieces 4 at both sides of an opening part 8. Then, after the strap 1 is hooked around the other hook tool 18, the strap 1 is further hooked around the one hook tool 18 with the strap 1 lapped over the ring-shaped hooking part 39. In this state, by pulling out the other part of the strap 1 to a getting-away direction from a tire, both the hook tools 18 are gathered together so that the opening part 8 can be fastened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tightening device for use in mounting a tire anti-skid device to a tire of an automobile or the like to prevent slipping on an icy and snowy road surface when the tire is mounted on the tire, and the like. The present invention relates to a tire anti-skid device to which the present invention can be applied, and a method of mounting a tire anti-slip device to a tire using this type of tightening device.

[0002]

2. Description of the Related Art Conventionally, as a tire non-slip device mainly composed of a non-metal material such as rubber, there is a device provided with a belt-shaped non-metal device main body wound around the outer periphery of a tire. The apparatus main body is provided with an inner tightening line along the widthwise inner edge, and a plurality of hooks is provided on the widthwise outer edge. An outer tightening cord for tightening the outer edge in the width direction of the apparatus body toward the center of the tire is detachably hooked to the hook.

[0003] In order to mount a tire anti-skid device on a tire, a buckle device (for example, Japanese Utility Model Publication No. 6-792) attaches both ends of the inner tightening cable to the inner side in the width direction of the tire.
No. 7). When an opening is provided at both ends in the longitudinal direction of the device main body or in the middle of the device main body in the longitudinal direction (in the case of a split type), the opening is aligned with the contact portion of the tire. At the same time, the device body is wound around the tire.

[0004] Then, the widthwise outer edges of both ends in the longitudinal direction of the device main body or the ends on both sides of the opening are pulled out to the outside in the width direction of the tire (front side) so as to sandwich the ground contact portion of the tire. And draw in the mutually approaching direction. Then, these two end portions are appropriately connected by connecting means. In this connection work, since a force is required for the ends to approach each other, for example, Utility Model Registration No. 25498
No. 93, Japanese Unexamined Patent Publication No. 3-16813, etc. have been used. In this fastening device, a first rocking link and a second rocking link each having a hook at the tip are connected to both ends of an intermediate link so as to be rockable.

[0005]

Among the conventional tightening devices, the one described in Japanese Utility Model Registration No. 2549893 is made of a plate material which is overlapped when each link is folded, and is folded into three layers. The folded state is maintained by separately sandwiching the plate members with a fixing member.

Further, in the device described in Japanese Patent Application Laid-Open No. 3-16813, each link is folded by applying a torque to the intermediate link with a special jig inserted into the center of the intermediate link. However, in these cases, the work of using a fixing member to maintain the folded state of each link or using a special jig to apply torque to the intermediate link is complicated and troublesome. There was a disadvantage that it was.

In the means for applying a torque by turning a special jig inserted into the center of the intermediate link, the torque applied to the special jig acts on the intermediate link without amplification, so that the intermediate link is not used. A considerable amount of force is required to rotate and fold each link. Therefore, also in this respect, it is difficult to perform the tightening work performed on the outer side in the width direction of the tire, and especially for a weak woman or an elderly person, the dedicated jig may not be able to be turned.

Further, in a configuration in which the tire anti-skid device is mounted on the tire and the fixing member and the exclusive jig as described above are kept attached to the tire anti-skid device, the fixed member and the exclusive The jig generates an eccentric load due to centrifugal force, which may lead to partial lifting of the tire anti-skid device. For this reason, there is a possibility that the tire slip device may be inconveniently in contact with the vehicle body.

Further, the above-mentioned conventional tightening device has a problem that the structure is complicated and the cost is high. The present invention has been made in view of the above circumstances, and when a tire anti-skid device is mounted on a tire, various operations performed on the outer side in the width direction of the tire are simplified, and the device is appropriately applied with a small force. The main body can be pulled out or pulled in, that is, the tightening operation can be performed by operating the tightening device, and further, as the tightening device, it may cause partial lifting when the tire anti-skid device is mounted on the tire, In addition to providing a tightening device for a tire anti-skid device that does not become a factor of high cost, including a case where the tightening device is applicable and a tire anti-skid device to which the tightening device is applicable, It is an object of the present invention to provide a method of mounting a tire anti-skid device which enables facilitation of a tightening operation or the like.

[0010]

According to the present invention, the following technical measures have been taken in order to achieve the above object. That is, the tightening device for a tire anti-skid device according to the present invention includes a cord main body, a hook provided at one end of the cord main body, and a grip provided at the other end of the cord main body. ing.

A description will be given of a case where the tightening device is used, for example, to tighten (close) an opening provided at an intermediate portion in the longitudinal direction of the device main body with respect to a split-type tire slip prevention device described later. Of the two ends on both sides of the opening, the hook of the fastening device is hooked to a locking portion (such as a hook device for an outer tightening cable) provided at one end on the outer edge in the width direction of the device main body. Lock.

Further, the other end of the opening portion is wound around a locking body (eg, a hook for an outer tightening cable) provided on an outer edge side in the width direction of the apparatus main body.
Then, if necessary, the cord body of the tightening device is rotated around the both locking portions only an appropriate number of times. In this state, if the grip portion of the tightening device is pulled in a direction away from the tire, a winding tightening action occurs with a pulley effect at the winding portion of the cord body with respect to both the locking portions, and the both locking portions are easily bundled. Become so. Therefore, in the device body,
The ends on both sides of the opening will surely approach each other.

The tightening device can also be used to tighten the widthwise outer edge of the device body toward the center of the tire. Moreover, it can also be used for fastening the widthwise outer edges at both ends in the longitudinal direction of the device body in the tire circumferential direction. When using a flat belt as the cord body,
In the case of making a plurality of rounds around both of the locking portions, lap winding becomes possible. Accordingly, the winding radius can be increased accordingly, and a strong pulley effect (tightening force) can be obtained, so that more secure tightening can be obtained, which is preferable. In addition, the flat belt has an advantage that the sliding at the overlapped winding portion is improved.

It is preferable that the grip portion is provided with a non-slip portion having a diameter larger than that of the cord main body, thereby facilitating the pulling operation. The tire anti-skid device according to the present invention, to which such a tightening device can be applied, has a configuration including a belt-shaped and nonmetallic device main body wound around the outer periphery of a tire, One of the ends that are brought close to each other when connected in a ring shape around the tire protrudes outward in the width direction of the device main body, and engages with the above-described hooking portion of the tightening device according to the present invention. And a locking portion that protrudes outward in the width direction of the device main body and that can be wound around the cord main body of the tightening device is provided on the other end of the device. Non-stretchable connection means for holding or releasing the approaching state of the ends may be provided near the widthwise outer edges of the both ends of the main body.

Each of the locking portions provided on the apparatus main body may also be used as a hook for an outer tightening cable for tightening the widthwise outer edge of the apparatus main body in the tire center direction or the tire circumferential direction. Of course, it is also possible to provide a dedicated locking portion separately from the hook device. When the tire anti-skid device according to the present invention is a split type,
In particular, the effect obtained is large. That is, in the split-type tire anti-skid device, the device main body includes at least two non-metallic net components arranged side by side along the tire circumferential direction, and these net components are placed inward in the width direction. And a plurality of hooks provided on the outer side in the width direction of each net component piece. An opening is formed to allow the pieces to be widely spaced from each other so as to avoid a contact portion of the tire.

Therefore, the above-described tightening device is required to narrow (tighten) the opening. Therefore, the pair of locking portions and the connecting means described above may be provided at opposing ends of the net component pieces on both sides forming the opening. On the other hand, the mounting method according to the present invention for mounting the tire anti-skid device on a tire is limited to using the tightening device according to the present invention (that is, the device in which the hook portion, the cord body, and the grip portion are indispensable). However, as long as it has a cord shape (that is, a hook or a grip portion includes one that is not clearly distinguished as a shape or an action site), it is the same as the above-described tightening device. A similar operation and effect can be obtained by an appropriate use method.

After the ends on the both sides of the apparatus main body are brought closer to each other, this approaching state is appropriately changed by connecting means (for example, a stopper formed of a non-stretchable material such as a wire).
May be held.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 2 and 3 show one embodiment of the tightening device 1 according to the present invention and the tire slip preventing device 2 to which the tightening device 1 can be applied, respectively, in an expanded (extended) state.

First, the tire slip prevention device 2 will be described. The tire anti-skid device 2 of the present embodiment is of a split type, and is a belt-shaped device main body 3 wound around the tire.
Has at least two (six in the example in the figure) non-metallic net component pieces 4 arranged side by side along the tire circumferential direction. Each of the net component pieces 4 is connected and held by an inner tightening cable 7 via a horizontal connecting member 5 attached to the inner side in the width direction (the upper side in each of FIGS. 2 and 3). An opening 8 for grounding the tire is formed in the middle part of the device body 3 in the longitudinal direction (just at the center), in which the space between adjacent predetermined net forming pieces 4 is wider than other adjacent spaces. ing.

A vertical connector 9 is provided on the outer edge of each net component 4 in the width direction (the lower side in FIGS. 2 and 3) except for the opening 8. The adjacent portions of the respective net constituent pieces 4 are connected to each other, and a connecting means 10 is provided in the opening 8. This connecting means 10
Has a stopper 11 and a receiving ring 12 provided from the net constituent pieces 4 on both sides of the opening 8 toward the inside of the opening 8.

The stopper 11 is formed of a non-stretchable material such as a wire material. As shown in FIG. 1, a mounting ring 13 for the net component 4 and an arm extending from the mounting ring 13 are provided. 14 and a connecting ring 15 provided at the distal end side of the arm 14 in a form lacking a part of a ring shape. A lock piece 16 is provided which is urged to refill.

When the stopper 11 and the receiving ring 12 are connected to each other and are pulled in opposite directions, the total length of the stopper 11 and the receiving ring 12 is adjusted to a predetermined opening length set in the opening 8. It has become equivalent. As described above, the opening 8 can be opened and closed as required by the connecting means 10.

The receiving ring 12 is not always necessary, and the connecting ring portion 15 of the stopper 11 may be directly hooked on the net component piece 4 on the mating side. Further, the stopper 11 is not limited to be provided with the lock piece 16 but may be a simple hook.
On the outer edge side in the width direction of the device main body 3, two or three pieces are further distributed to the individual net constituting pieces 4,
A plurality of hooks 18 are provided.

As shown in FIG. 1, the hook 18
It is formed by bending wire material etc.
A mounting ring portion 20 for mounting to the net forming piece 4, a neck portion 21 extending from the mounting ring portion 20, and a hook bent at the tip of the neck portion 21 into a hook shape (including a J shape, a U shape, an L shape, etc.). And a part 22. And by this hook part 22,
The outer tightening cable 23 (see FIG. 3) used to pull the outer edge in the width direction of the device body 3 toward the center of the tire is bridged. Further, on both sides of the opening 8, the hook 22 or the neck 21 of the hook 18 close to the opening 8 also serves as a locking portion for hooking or winding the tightening device 1 described later. It has become.

Each of the net constituting pieces 4 is formed by coating a core material (not shown) stretched in a predetermined net pattern with a nonmetallic elastic material such as synthetic rubber or natural rubber. The net component 4 has a central portion in the width direction as a tread corresponding region (ground contact region) of the tire, and a plurality of spike pins 25 are driven into the tread corresponding region.

Further, as going from the tread corresponding region to the both sides in the width direction, a region corresponding to the shoulder portion of the tire and a region corresponding to the sidewall of the tire are formed. The connecting tool 5 and the inner tightening cord 7 are provided, and the vertical connecting tool 9, the hook tool 18, and the connecting means 10 are provided in the sidewall region on the outer side in the width direction.

The inner tightening cable 4 is formed of a non-stretchable rope which does not substantially extend even when it is subjected to a tension in the longitudinal direction, and a male member 27 of a connection buckle 26 is provided at one end (left side in FIG. 2). The female member 28 of the connection buckle 26 is connected to the other end (right side in FIG. 3). Device body 3
, The horizontal connecting members 5 attached to the two net forming pieces 4 near both ends in the longitudinal direction are caulked and fixed to the inner tightening cable 7. Therefore, each of these four net component pieces 4 and the inner tightening cord 7 are in a fixed state where relative movement is not possible. On the other hand, as for the two net component pieces 4 sandwiching the opening 8, the two horizontal connecting members 5 arranged near the opening 8 are in a loosely fitted state on the inner tightening cable 7 and can be relatively moved. It has become.

Therefore, these two net constituting pieces 4 sandwiching the opening 8 can expand and contract the opening 8 within a range in which the two horizontal connecting members 5 can relatively move with respect to the inner tightening cable 7. This is useful when the anti-skid device 2 is mounted on a tire. As the outer tightening cable 23, for example, one having a stopper mechanism as shown in FIG. 3 can be employed.

The outer tightening cable 23 is connected to a buckle device 30.
And a non-stretchable rope 31 forming an inner loop including the buckle device 30, and an elastic rope 32 forming an outer loop outside the non-stretchable rope 31.
The non-stretchable rope 31 has both ends 31a inserted into the inside of the device from both left and right sides of the buckle device 30, is folded in a U-turn shape inside the device, and is drawn out to both left and right sides.

The elastic rope 32 has two ends 32a.
Are connected to both ends 31a of the non-stretchable rope 31 pulled out from the buckle device 30, respectively. On the other hand, the buckle device 30 allows the movement of the non-stretchable rope 31 in a direction in which both ends 31a of the non-stretchable rope 31 are pulled out, that is, in a direction in which the outer loop by the elastic rope 32 is enlarged. A mechanism for preventing the movement of the non-stretchable rope 31 in the opposite direction is incorporated. The built-in mechanism is provided with a release switch 33, and the non-stretchable rope 31 can be moved in any direction only when the release switch 33 is operated.

The buckle device 30 is provided with a bifurcated connecting hook 34 for hooking to both longitudinal ends of the device body 3 so as to be swingable. On the other hand, holes 36 are provided at the outer ends in the width direction at both ends in the longitudinal direction of the apparatus main body 3. The hole 36 is used for attaching the hook 18 when the net constituting piece 4 is used at an intermediate portion in the longitudinal direction of the apparatus main body 3, but the net constituting piece 4 is used at both longitudinal ends of the apparatus main body 3. Thus, the hook device 18 becomes unnecessary (because it is replaced with the buckle device 30), and is left unused.

Accordingly, when the device main body 3 is formed into a ring shape around the tire, the hole 36 is used to form the buckle device 30.
Is used as an engagement hole for inserting the connection hook 34 of the above. In addition to the hole 36, the net component 4
The hole for attaching the vertical connecting member 9 when the device is used in the middle part in the longitudinal direction of the apparatus main body 3 or the like can be used as the engaging hole.

Next, the tightening device 1 according to the present invention will be described. As shown in FIGS. 1 and 2, the tightening device 1 includes a cord body 38, a hook 39 provided at one end of the cord body 38, and a grip portion provided at the other end of the cord body 38. 40. The cord body 38 is preferably formed by weaving a fiber material such as cotton or synthetic fiber, and is preferably a flat belt having a flat cross section. In addition, it is also possible to form resin, rubber, leather, metal, or the like as a material and to form an integral or fibrous braided structure, or to make the cross-sectional shape circular or the like.

The hook portion 39 is formed in a ring shape by folding the string main body 38 and sewing it. Although not shown, it is also possible to form a hook portion 39 by attaching a ring to one end of the cord main body 38 or attaching a hook and a hook. A suitable place around the opening 8 on the outer side in the direction (as described above, in the present embodiment, the hook 22 or the neck 21 of the hook 18 close to the opening 8 is used as a locking portion for engaging the hook 39. Any structure can be used as long as it can be engaged with the second member.

The grip portion 40 is provided with a non-slip portion 41 having a diameter larger than that of the cord main body 38. This non-slip part 41
Can be formed by tying a knot to the string main body 38, increasing the diameter by the knitting structure of the string main body 38 itself, inserting and fixing a gripping ball or the like, or fixing a grip made of resin or the like. it can. Next, the tire slip prevention device 2
The following describes a fastening operation performed by using the above-described fastening device 1 when mounting the tire on a tire, with reference to FIGS. 7 and 8 showing the state after the mounting.

First, the tire anti-skid device 2 is passed through the inside of the tire 45 in the width direction (back side), and the opening 8 of the device main body 3 corresponds to the ground contact portion of the tire 45, so that the tire anti-skid device 2 is placed on the ground in the vehicle front-rear direction. The device main body 3 is unfolded so as to cross. The male member 27 and the female member 2 of the connection buckle 26 provided at both ends thereof are lifted at both ends of the inner tightening cable 7.
8, the opening 8 of the device main body 3 is aligned with the ground contact portion of the tire 45, and both ends in the longitudinal direction of the device main body 3 are aligned with the upper portion of the tire 45, respectively. Is wound around the tire 45.

At this time, the net constituting pieces 4 on both sides of the opening 8 are relatively movable with respect to the inner tightening cable 7 via the two horizontal connecting members 5 near the opening 8. The opening 8 can be expanded by bending the net component piece 4, whereby the inner tightening cable 7 can be easily connected in a ring shape while avoiding the contact portion of the tire 45. Next, the outer edge in the width direction of the device body 3 is set to the outer side in the width direction of the tire 45 (front side)
Pull out to. Of course, the outer ends in the width direction of the net component pieces 4 on both sides of the opening 8 are sufficiently pulled out to the outer side in the width direction of the tire 45 so as to sandwich the grounding portion of the tire 45. In this way, the device main body 3 is moved along the outer circumference of the tire 45, and the buckle device
Is hooked into holes 36 provided at both ends in the longitudinal direction of the apparatus main body 3.

Next, as shown in FIG. 1, with respect to the hook member 18 of the net constituting piece 4 located at one side (left side in the example in the figure) of the opening 8, a fastening device is fastened to the hook portion 22 (locking portion). The first hook 39 is engaged. As shown in FIG. 4, a hook portion 22 (an engagement portion) of the hook member 18 of the net component piece 4 located on the other side (the right side in the example of the drawing) of the opening 8 is provided.
The cord body 38 of the tightening device 1 is wound. Further, the string main body 38 is caused to orbit around the hook portion 22 of the hook device 18 with which the hook portion 39 is engaged so that the string main body 38 itself overlaps. This rotation may be performed as many times as necessary.

In some cases, as shown in FIG. 6, the hook portion 18 (locking portion) of the hook member 18 of the net component piece 4 located on one side (the right side in the example in the drawing) of the opening 8 is provided. The hook 39 of the tightening device 1 is engaged with the hook 18 of the net component piece 4 located on the other side (left side in the figure) of the opening 8 to the hook 22 (locking portion). One string main body 38 may be wound around, and thereafter, the string main body 38 may be stretched as it is so as not to go around.

Then, the grip portion 40 of the tightening device 1 is gripped and strongly pulled in a direction away from the tire 45. Then, as shown in FIG. 5, the hook device 18 with the hook portion 39 engaged therewith and the hook device 18 around the string main body 38 are bundled, and the net constituting pieces 4 on both sides sandwiching the opening 8 are mutually connected. As they approach each other, the openings 8 become tightened.

In this state, the connecting means 10 is connected in the opening 8. When the connection of the connecting means 10 is completed, the fastening device 1 is removed from the device main body 3. afterwards,
In the outer tightening cable 23, the non-stretchable rope 31 and the elastic rope 32 are connected to each hook 18 of the apparatus main body 3 from, for example, the upper one (closer to the position where the buckle device 30 is locked) to the lower one. By taking a procedure of hooking in order (of course, another procedure is also possible), the mounting on the tire 45 is completed.

In this case, as shown in FIG. 8, inside the tire 45 after the tire anti-skid device 2 is mounted, the inner tightening cable 7 is connected to the three vertical connecting members 5 of the respective net constituting pieces 4. It is arranged so as to draw a bent polygonal shape close to a circle, and pulls the inner edge in the width direction of each net component piece 4 toward the center of the tire 45. Further, as shown in FIG. 7, on the outer side of the tire 45 after the tire anti-skid device 2 is mounted, a middle part of the outer tightening cable 23 is locked by each hook 18, and both sides of the opening 8. Are also tightened by a necessary and sufficient amount, the outer edge of each net component 4 is pulled toward the center of the tire 45 by the elastic force of the elastic rope 32 and is positioned on both sides of the opening 8. The net constituent pieces 4 to be drawn are always pulled in the direction in which they are attracted to each other.

In this way, the work of tightening the device main body 3 in the anti-skid device 2 can be performed quickly and easily. Incidentally, the present invention is not limited to the above embodiment. For example, the fastening device 1 not only tightens the widthwise outer edges of the opening 8 or both ends in the longitudinal direction of the device main body 3 in the tire slip prevention device 2 in the circumferential direction of the tire 45, but also, for example, a utility model. It can also be used to tighten the device body 3 in the direction of the center of the tire 45, as shown in Japanese Patent No. 2549893.

The tightening device 1 is not necessarily limited to be overlapped. For example, the string main body 38 formed in a round string shape is attached to the hook portion 22 (locking portion) of the hook device 18. It may be broken and wound around. In the tire slip prevention device 1, the locking portion for locking or winding the hook portion 39 of the tightening device 1 is not limited to the hook portion 22 of the hook device 18, but may be the neck portion 21 or the hook device. An object other than 18, for example, a dedicated locking tool (not shown) may be provided. Alternatively, a part of the device body 3 may be regarded as a locking portion, and the hook portion 39 of the fastening device 1 may be directly locked or wound around the locking portion.

In the tire anti-skid device 1, as the net constituting piece 4, in addition to the above-mentioned net pattern, one having a plurality of ladder-like portions inside, or a net-like portion and a ladder-like portion is used. Combinations can be employed. Further, the net constituting piece 4 is not limited to the type in which the core material is coated with an elastic material such as rubber, but rayon, polyamide fiber, polyester fiber, polyolefin fiber, polyurethane fiber, cotton, wool in the elastic material. It may be a type in which various organic and inorganic short fibers such as glass fiber, carbon fiber, rock wool, and asbestos are mixed.

Further, a type employing a resin material as the elastic material may be employed. Further, the apparatus main body 3 is not limited to the split type, and may be integrally formed in a belt shape. In the net component piece 4, in the type in which the short fibers are mixed with the elastic material as described above, even if the surface of the short fibers has been subjected to the treatment for increasing the adhesive force with the elastic material, thereafter, In the process of kneading with another compounding material in the mixer, the short fibers may be frayed or cut, and the adhesive strength with the elastic material may be insufficient.

In this case, the external dimensions, that is, the product dimensions at the time of molding (such as vulcanization) as the net component piece 4 may be expanded and deformed after running use. On the other hand, in the case of the net component piece 4 in which a core material made of an organic fiber or the like is coated with an elastic material, it is known that the core material undergoes thermal shrinkage when the elastic material is heated (vulcanized, etc.). ing. Therefore, in the tire anti-skid device 1 configured using the net component pieces 4, the individual net component pieces 4, and eventually the device body 3 as a whole are generated due to heat generated during running and tensile force in the tire circumferential direction. In some cases, elongation along the longitudinal direction occurs.

As described above, whether the net component piece 4 is of a type in which short fibers are mixed or a type in which a core material is covered with an elastic material, the outer dimensions are enlarged by starting running from a new point in time. Deformation may occur, and this may cause partial lifting of the tire anti-skid device 1 during traveling, which in turn may cause the tire anti-skid device 1 to come into contact with and cut off the vehicle body, Hurt,
In some cases, the tire slip prevention device 1 may come off the tire.

Further, if a method of forming the net component piece 4 one size smaller in advance in anticipation of such an increase in dimensions is adopted, when the tire slip prevention device 1 is used for the first time, Another disadvantage is that it becomes very difficult to attach the tire antiskid device 1 to a tire. Therefore, in order to solve these problems, as shown in FIGS. 9 and 10, each of the net component pieces 4 is vulcanized immediately after being vulcanized and canned. It is preferable to take a measure of applying a tensile force in the longitudinal direction and the lateral direction and pre-stretching (the same action as post-inflation performed on the tire).

That is, if such measures are taken, the elongation of the net component piece 4 during traveling can be suppressed,
Therefore, undesired elongation does not occur even in the device main body 3, and as a result, it is possible to extend the life of the tire anti-skid device 1, prevent the vehicle body from being damaged, and prevent the tire slip prevention device from being detached from the tire. In addition, as a method of applying a tensile force to the net component piece 4 immediately after vulcanization in the longitudinal direction and the horizontal direction, as shown in FIG. 11, a method of pulling four corners of the net component piece 4 obliquely outward at once. Figure 1
As shown in FIG. 2 and FIG. 13, it is also possible to adopt a method of repeatedly bending the net component piece 4 in the front-back direction (front and back direction) with the center of the vertical axis and the center of the horizontal axis passing through the center of the net component piece 4. It is.

The degree of the application of the tensile force is, for example, in the case where the net constituting piece 4 conforming to the tire size of 185 / 70R14 is molded by injection molding from a rubber material mixed with 7 parts of short fibers. While the net component piece 4 is not cooled, a tensile force is applied in the longitudinal and lateral directions so that each becomes 1.5 times the original length, and the tensile force is released after one minute. Good.

In this case, the vertical dimension (long side dimension) was 285 mm when it was 285 mm, and the horizontal dimension (short side dimension) was 238 mm when it was 237 mm. . These dimensions are substantially equal to the vertical and horizontal dimensions (291 mm x 238 mm) after running use, and as a result, it is proved that almost no dimensional expansion deformation occurred before and after running use.

[0053]

As is apparent from the above description, the tightening device for a tire anti-skid device according to the present invention performs various operations performed outside the tire in the width direction when the anti-skid device is mounted on the tire. The operation of pulling out or pulling out the main body of the apparatus can be performed more simply and with a small force, that is, the tightening operation by operating the tightening device can be performed. Further, as the tightening device, the tire slip prevention device is mounted on the tire. Therefore, it does not cause a partial lift in the above-mentioned method, nor does it cause a high cost.

Further, according to the tire anti-skid device and the method of mounting the anti-skid device according to the present invention, the fastening operation and the like can be performed easily, so that the operation of mounting the anti-skid device becomes easy.

[Brief description of the drawings]

FIG. 1 is an enlarged perspective view showing a relationship between a main part of a tightening device according to the present invention and an applied portion in a tire slip prevention device.

FIG. 2 is a diagram showing the left half of the tire antiskid device according to the present invention in an expanded state and the tightening device according to the present invention in an extended state.

FIG. 3 is a view showing a right half and an outer tightening line of the tire anti-skid device according to the present invention in a deployed state.

FIG. 4 is a perspective view showing an operation of tightening an opening of the device main body in the tire slip prevention device by the tightening device according to the present invention.

FIG. 5 is a perspective view showing a work situation following FIG. 4;

FIG. 6 is a perspective view showing an operation of tightening an opening of an apparatus main body in a tire anti-skid device by a method (a method of using a tightening device) different from the operations described in FIGS. 4 and 5;

FIG. 7 is a side view of the widthwise outer side of the tire to which the tire antiskid device is mounted.

FIG. 8 is a side view of an inner side in a width direction of the tire to which the tire slip prevention device is attached.

FIG. 9 is a diagram illustrating a situation in which a lateral tensile force is applied to a net component piece immediately after molding.

FIG. 10 is a diagram illustrating a situation in which a tensile force in the longitudinal direction is applied to a net component piece immediately after molding.

FIG. 11 is a diagram illustrating a situation in which a tensile force is applied to the four corners of the net component piece immediately after molding in a diagonally outward direction at one time.

FIG. 12 is a diagram illustrating a situation in which a net component piece immediately after molding is repeatedly bent in the front-rear direction at the center of a vertical axis passing through the center to apply a tensile force.

FIG. 13 is a diagram illustrating a situation in which a net component piece immediately after molding is repeatedly bent in the front-rear direction at the center of a horizontal axis passing through the center thereof to apply a tensile force.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tightening device 2 Tire anti-skid device 3 Device main body 4 Net component piece 7 Inner tightening cable 8 Opening 10 Connecting means 18 Hook tool 22 Hook tool hook part (also serves as locking part) 23 Outer tightening cable 38 String main body 39 Hook Part 40 grip part 41 non-slip part 45 tire

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Takayuki Shinoda 2-1-1-12 Shinkitajima, Suminoe-ku, Osaka-shi, Osaka (72) Inventor Manabu Ohne 54-16 Nishiojimachi, Kishiwada-shi, Osaka

Claims (8)

[Claims] 1. A string body (38), a hook (39) provided at one end of the string body (38), and a string body (3).
8) A fastening device for a tire anti-skid device, comprising a grip portion (40) provided at the other end of the device. 2. The tightening device for a tire anti-skid device according to claim 1, wherein a flat belt is used for the cord main body (38). 3. The string body (3) is provided on the grip portion (40).
3. A tightening device for a tire anti-skid device according to claim 1, wherein a non-slip portion (41) having a diameter larger than that of (8) is provided. 4. A tire anti-skid device comprising a belt-shaped and non-metallic device main body (3) wound around the outer periphery of a tire (45), wherein the device main body (3) is formed in a ring shape around the tire (45). 4. A hooking portion of the tightening device (1) according to claim 1, wherein one of the ends which are brought close to each other when connected to the main body (3) protrudes outward in the width direction of the device main body (3). (3
9) is provided with a locking portion (22) capable of engaging the same, and the other of the end portions protrudes outward in the width direction of the device main body (3) and is provided with the fastening device (1). String body (3
8) A locking portion (22) is provided to enable the device to be wound around the device. Further, the device body (3) is provided with a non-expandable / contractible device that holds or cancels an approaching state of the two ends near the outer edges in the width direction of the both ends. A tire anti-skid device, characterized by being provided with a sex connection means (10). 5. Each of the locking portions (22) provided on the device main body (3) has an outer tightening cable (23) for tightening a widthwise outer edge of the device main body (3) in a tire center direction or a tire circumferential direction. 5. The tire anti-skid device according to claim 4, wherein the anti-skid device also functions as a hook device. 6. The apparatus main body (3) includes at least two non-metallic net component pieces (4) arranged side by side along the tire circumferential direction, and mutually connects these net component pieces (4) in their width direction. The apparatus has an inner tightening cable (7) to be connected and held on the inner side, and a plurality of hooks (18) provided on the outer side in the width direction of each net component (4). 3)
An opening (8) is formed in the entire middle part in the longitudinal direction of (2) so as to widen the interval between the adjacent net component pieces (4) and to avoid the contact portion of the tire (45).
A pair of locking portions (22) and connecting means (10) according to claim 4 or claim 5 are provided at opposing ends of the net component pieces (4) on both sides forming the opening (8). A tire anti-skid device, characterized in that: 7. A non-metallic device main body (3) wound around an outer periphery of a tire (45) and connected to the tire (45) in a ring shape around the tire (45). The tire anti-skid device (2) having a pair of locking portions (22) projecting outward in the width direction of the device main body (3) is provided at both ends to be brought close to each other. The device main body (3) is wound around the outer periphery of the tire (45), and ends of the device body (3) are connected to each other in a ring shape by the tire (45).
At one end (39) of the cord-shaped fastening device (1) at an engagement portion (22) provided at one end portion facing the other at this time. After the string portion (38) of the device (1) is wound around the locking portion (22) provided at the other end facing the device, the string portion (38) of the tightening device (1) is further provided as necessary. ) Is rotated around the locking portions (22) only an appropriate number of times, and the other end portion (40) of the tightening device (1) is pulled in a direction away from the tire (45) to thereby obtain the locking portions (22). Focus on
A method for mounting a tire anti-skid device, characterized in that the ends of the device main body (3) are brought close to each other, and thereafter the close state is maintained by a non-stretchable appropriate connecting means (10). 8. When the tightening device (1) is made to wrap around both locking parts (22), the string part (38)
8. The method for mounting a tire anti-skid device according to claim 7, wherein the tire is made to orbit in a state of being overlapped.